Retractile papillae in Oxynoe

May 10, 2002
From: Nishina Masayoshi

Dear Bill,
In your comment on O. kabirensis, you mentioned that "there are usually a few scattered very elongate papillae, which are probably retractile"
This is correct, The papillae are retractile in both O. viridis and O. kabirensis. I have attached images of the same individual of O. viridis, one with papillae extended, the other with papillae retracted.
Best Regards,
Nishina Masayoshi

Masayoshi, N., 2002 (May 10) Retractile papillae in Oxynoe. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Nishina,
Thanks to your photos, I've taken the 'probably' out of my comment
Bill Rudman


Oxynoe viridis

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